What is Future in Flutter Dart?

To create a Future object, we need to instantiate Future class by passing an invoker function (usually an anonymous function or fat arrow function) whose job is to return a value or another Future object that returns a value . A Future object has then and catchError methods which are used to register callback functions.

A Future represents a potential value, or error , that will be available at some time in the future. A Future can be complete with a value or with an error. Programmers can plug callbacks for each case. Futures and async and await keywords are used to perform asynchronous operations in Dart.